Looks like it's in the air.
I also got week ago new set of Bilstein B6/HD + H&R springs, but have green/blue springs instead. In addition, will install 21mm rear ARB.
Car is 964 C4
These are spring rates I got:
H&R 964 springs (blue/green)
Front 190-255 lbs/inch
Rear 220-265 lbs/inch
H&R 965 (Turbo) springs (red)
Front 250-270 lbs/inch
Rear 265-285 lbs/inch